Libav
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Main libavformat public API header. More...
#include <time.h>
#include <stdio.h>
#include "libavcodec/avcodec.h"
#include "libavutil/dict.h"
#include "libavutil/log.h"
#include "avio.h"
#include "libavformat/version.h"
Go to the source code of this file.
Data Structures | |
struct | AVProbeData |
This structure contains the data a format has to probe a file. More... | |
struct | AVOutputFormat |
struct | AVInputFormat |
struct | AVIndexEntry |
struct | AVStream |
Stream structure. More... | |
struct | AVProgram |
New fields can be added to the end with minor version bumps. More... | |
struct | AVChapter |
struct | AVFormatContext |
Format I/O context. More... | |
struct | AVPacketList |
Macros | |
#define | AVPROBE_SCORE_EXTENSION 50 |
score for file extension More... | |
#define | AVPROBE_SCORE_MIME 75 |
score for file mime type More... | |
#define | AVPROBE_SCORE_MAX 100 |
maximum score More... | |
#define | AVPROBE_PADDING_SIZE 32 |
extra allocated bytes at the end of the probe buffer More... | |
#define | AVFMT_NOFILE 0x0001 |
Demuxer will use avio_open, no opened file should be provided by the caller. More... | |
#define | AVFMT_NEEDNUMBER 0x0002 |
Needs 'd' in filename. More... | |
#define | AVFMT_SHOW_IDS 0x0008 |
Show format stream IDs numbers. More... | |
#define | AVFMT_RAWPICTURE 0x0020 |
Format wants AVPicture structure for raw picture data. More... | |
#define | AVFMT_GLOBALHEADER 0x0040 |
Format wants global header. More... | |
#define | AVFMT_NOTIMESTAMPS 0x0080 |
Format does not need / have any timestamps. More... | |
#define | AVFMT_GENERIC_INDEX 0x0100 |
Use generic index building code. More... | |
#define | AVFMT_TS_DISCONT 0x0200 |
Format allows timestamp discontinuities. More... | |
#define | AVFMT_VARIABLE_FPS 0x0400 |
Format allows variable fps. More... | |
#define | AVFMT_NODIMENSIONS 0x0800 |
Format does not need width/height. More... | |
#define | AVFMT_NOSTREAMS 0x1000 |
Format does not require any streams. More... | |
#define | AVFMT_NOBINSEARCH 0x2000 |
Format does not allow to fall back on binary search via read_timestamp. More... | |
#define | AVFMT_NOGENSEARCH 0x4000 |
Format does not allow to fall back on generic search. More... | |
#define | AVFMT_NO_BYTE_SEEK 0x8000 |
Format does not allow seeking by bytes. More... | |
#define | AVFMT_ALLOW_FLUSH 0x10000 |
Format allows flushing. More... | |
#define | AVFMT_TS_NONSTRICT 0x20000 |
Format does not require strictly increasing timestamps, but they must still be monotonic. More... | |
#define | AVFMT_TS_NEGATIVE 0x40000 |
Format allows muxing negative timestamps. More... | |
#define | AVINDEX_KEYFRAME 0x0001 |
#define | AV_DISPOSITION_DEFAULT 0x0001 |
#define | AV_DISPOSITION_DUB 0x0002 |
#define | AV_DISPOSITION_ORIGINAL 0x0004 |
#define | AV_DISPOSITION_COMMENT 0x0008 |
#define | AV_DISPOSITION_LYRICS 0x0010 |
#define | AV_DISPOSITION_KARAOKE 0x0020 |
#define | AV_DISPOSITION_FORCED 0x0040 |
Track should be used during playback by default. More... | |
#define | AV_DISPOSITION_HEARING_IMPAIRED 0x0080 |
stream for hearing impaired audiences More... | |
#define | AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 |
stream for visual impaired audiences More... | |
#define | AV_DISPOSITION_CLEAN_EFFECTS 0x0200 |
stream without voice More... | |
#define | AV_DISPOSITION_ATTACHED_PIC 0x0400 |
The stream is stored in the file as an attached picture/"cover art" (e.g. More... | |
#define | AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001 |
The call resulted in updated metadata. More... | |
#define | MAX_STD_TIMEBASES (60*12+5) |
Stream information used internally by av_find_stream_info() More... | |
#define | MAX_PROBE_PACKETS 2500 |
Number of packets to buffer for codec probing. More... | |
#define | MAX_REORDER_DELAY 16 |
#define | AV_PROGRAM_RUNNING 1 |
#define | AVFMTCTX_NOHEADER 0x0001 |
signal that no header is present (streams are added dynamically) More... | |
#define | AVFMT_FLAG_GENPTS 0x0001 |
Generate missing pts even if it requires parsing future frames. More... | |
#define | AVFMT_FLAG_IGNIDX 0x0002 |
Ignore index. More... | |
#define | AVFMT_FLAG_NONBLOCK 0x0004 |
Do not block when reading packets from input. More... | |
#define | AVFMT_FLAG_IGNDTS 0x0008 |
Ignore DTS on frames that contain both DTS & PTS. More... | |
#define | AVFMT_FLAG_NOFILLIN 0x0010 |
Do not infer any values from other values, just return what is stored in the container. More... | |
#define | AVFMT_FLAG_NOPARSE 0x0020 |
Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled. More... | |
#define | AVFMT_FLAG_NOBUFFER 0x0040 |
Do not buffer frames when possible. More... | |
#define | AVFMT_FLAG_CUSTOM_IO 0x0080 |
The caller has supplied a custom AVIOContext, don't avio_close() it. More... | |
#define | AVFMT_FLAG_DISCARD_CORRUPT 0x0100 |
Discard frames marked corrupted. More... | |
#define | AVFMT_FLAG_FLUSH_PACKETS 0x0200 |
Flush the AVIOContext every packet. More... | |
#define | AVFMT_FLAG_BITEXACT 0x0400 |
When muxing, try to avoid writing any random/volatile data to the output. More... | |
#define | FF_FDEBUG_TS 0x0001 |
#define | AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001 |
The call resulted in updated metadata. More... | |
#define | RAW_PACKET_BUFFER_SIZE 2500000 |
Remaining size available for raw_packet_buffer, in bytes. More... | |
#define | AVSEEK_FLAG_BACKWARD 1 |
#define | AVSEEK_FLAG_BYTE 2 |
seeking based on position in bytes More... | |
#define | AVSEEK_FLAG_ANY 4 |
seek to any frame, even non-keyframes More... | |
#define | AVSEEK_FLAG_FRAME 8 |
seeking based on frame number More... | |
Enumerations | |
enum | AVStreamParseType { AVSTREAM_PARSE_NONE, AVSTREAM_PARSE_FULL, AVSTREAM_PARSE_HEADERS, AVSTREAM_PARSE_TIMESTAMPS, AVSTREAM_PARSE_FULL_ONCE } |
Functions | |
int | av_get_packet (AVIOContext *s, AVPacket *pkt, int size) |
Allocate and read the payload of a packet and initialize its fields with default values. More... | |
int | av_append_packet (AVIOContext *s, AVPacket *pkt, int size) |
Read data and append it to the current content of the AVPacket. More... | |
unsigned | avformat_version (void) |
Return the LIBAVFORMAT_VERSION_INT constant. More... | |
const char * | avformat_configuration (void) |
Return the libavformat build-time configuration. More... | |
const char * | avformat_license (void) |
Return the libavformat license. More... | |
void | av_register_all (void) |
Initialize libavformat and register all the muxers, demuxers and protocols. More... | |
void | av_register_input_format (AVInputFormat *format) |
void | av_register_output_format (AVOutputFormat *format) |
int | avformat_network_init (void) |
Do global initialization of network components. More... | |
int | avformat_network_deinit (void) |
Undo the initialization done by avformat_network_init. More... | |
AVInputFormat * | av_iformat_next (const AVInputFormat *f) |
If f is NULL, returns the first registered input format, if f is non-NULL, returns the next registered input format after f or NULL if f is the last one. More... | |
AVOutputFormat * | av_oformat_next (const AVOutputFormat *f) |
If f is NULL, returns the first registered output format, if f is non-NULL, returns the next registered output format after f or NULL if f is the last one. More... | |
AVFormatContext * | avformat_alloc_context (void) |
Allocate an AVFormatContext. More... | |
void | avformat_free_context (AVFormatContext *s) |
Free an AVFormatContext and all its streams. More... | |
const AVClass * | avformat_get_class (void) |
Get the AVClass for AVFormatContext. More... | |
AVStream * | avformat_new_stream (AVFormatContext *s, const AVCodec *c) |
Add a new stream to a media file. More... | |
uint8_t * | av_stream_get_side_data (AVStream *stream, enum AVPacketSideDataType type, int *size) |
Get side information from stream. More... | |
AVProgram * | av_new_program (AVFormatContext *s, int id) |
AVInputFormat * | av_find_input_format (const char *short_name) |
Find AVInputFormat based on the short name of the input format. More... | |
AVInputFormat * | av_probe_input_format (AVProbeData *pd, int is_opened) |
Guess the file format. More... | |
AVInputFormat * | av_probe_input_format2 (AVProbeData *pd, int is_opened, int *score_max) |
Guess the file format. More... | |
int | av_probe_input_buffer (AVIOContext *pb, AVInputFormat **fmt, const char *filename, void *logctx, unsigned int offset, unsigned int max_probe_size) |
Probe a bytestream to determine the input format. More... | |
int | avformat_open_input (AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options) |
Open an input stream and read the header. More... | |
int | avformat_find_stream_info (AVFormatContext *ic, AVDictionary **options) |
Read packets of a media file to get stream information. More... | |
int | av_find_best_stream (AVFormatContext *ic, enum AVMediaType type, int wanted_stream_nb, int related_stream, AVCodec **decoder_ret, int flags) |
Find the "best" stream in the file. More... | |
int | av_read_frame (AVFormatContext *s, AVPacket *pkt) |
Return the next frame of a stream. More... | |
int | av_seek_frame (AVFormatContext *s, int stream_index, int64_t timestamp, int flags) |
Seek to the keyframe at timestamp. More... | |
int | avformat_seek_file (AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags) |
Seek to timestamp ts. More... | |
int | av_read_play (AVFormatContext *s) |
Start playing a network-based stream (e.g. More... | |
int | av_read_pause (AVFormatContext *s) |
Pause a network-based stream (e.g. More... | |
void | avformat_close_input (AVFormatContext **s) |
Close an opened input AVFormatContext. More... | |
int | avformat_write_header (AVFormatContext *s, AVDictionary **options) |
Allocate the stream private data and write the stream header to an output media file. More... | |
int | av_write_frame (AVFormatContext *s, AVPacket *pkt) |
Write a packet to an output media file. More... | |
int | av_interleaved_write_frame (AVFormatContext *s, AVPacket *pkt) |
Write a packet to an output media file ensuring correct interleaving. More... | |
int | av_write_trailer (AVFormatContext *s) |
Write the stream trailer to an output media file and free the file private data. More... | |
AVOutputFormat * | av_guess_format (const char *short_name, const char *filename, const char *mime_type) |
Return the output format in the list of registered output formats which best matches the provided parameters, or return NULL if there is no match. More... | |
enum AVCodecID | av_guess_codec (AVOutputFormat *fmt, const char *short_name, const char *filename, const char *mime_type, enum AVMediaType type) |
Guess the codec ID based upon muxer and filename. More... | |
void | av_hex_dump (FILE *f, const uint8_t *buf, int size) |
Send a nice hexadecimal dump of a buffer to the specified file stream. More... | |
void | av_hex_dump_log (void *avcl, int level, const uint8_t *buf, int size) |
Send a nice hexadecimal dump of a buffer to the log. More... | |
void | av_pkt_dump2 (FILE *f, AVPacket *pkt, int dump_payload, AVStream *st) |
Send a nice dump of a packet to the specified file stream. More... | |
void | av_pkt_dump_log2 (void *avcl, int level, AVPacket *pkt, int dump_payload, AVStream *st) |
Send a nice dump of a packet to the log. More... | |
enum AVCodecID | av_codec_get_id (const struct AVCodecTag *const *tags, unsigned int tag) |
Get the AVCodecID for the given codec tag tag. More... | |
unsigned int | av_codec_get_tag (const struct AVCodecTag *const *tags, enum AVCodecID id) |
Get the codec tag for the given codec id id. More... | |
int | av_find_default_stream_index (AVFormatContext *s) |
int | av_index_search_timestamp (AVStream *st, int64_t timestamp, int flags) |
Get the index for a specific timestamp. More... | |
int | av_add_index_entry (AVStream *st, int64_t pos, int64_t timestamp, int size, int distance, int flags) |
Add an index entry into a sorted list. More... | |
void | av_url_split (char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url) |
Split a URL string into components. More... | |
void | av_dump_format (AVFormatContext *ic, int index, const char *url, int is_output) |
Print detailed information about the input or output format, such as duration, bitrate, streams, container, programs, metadata, side data, codec and time base. More... | |
int | av_get_frame_filename (char *buf, int buf_size, const char *path, int number) |
Return in 'buf' the path with 'd' replaced by a number. More... | |
int | av_filename_number_test (const char *filename) |
Check whether filename actually is a numbered sequence generator. More... | |
int | av_sdp_create (AVFormatContext *ac[], int n_files, char *buf, int size) |
Generate an SDP for an RTP session. More... | |
int | av_match_ext (const char *filename, const char *extensions) |
Return a positive value if the given filename has one of the given extensions, 0 otherwise. More... | |
int | avformat_query_codec (const AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance) |
Test if the given container can store a codec. More... | |
const struct AVCodecTag * | avformat_get_riff_video_tags (void) |
const struct AVCodecTag * | avformat_get_riff_audio_tags (void) |
Main libavformat public API header.
Definition in file avformat.h.
#define AVPROBE_SCORE_EXTENSION 50 |
score for file extension
Definition at line 402 of file avformat.h.
Referenced by ac3_eac3_probe(), adts_aac_probe(), av_probe_input_format2(), avs_probe(), cavsvideo_probe(), dts_probe(), flac_probe(), h261_probe(), h263_probe(), h264_probe(), hevc_probe(), idcin_probe(), img_read_probe(), matroska_probe(), mov_probe(), mp3_read_probe(), mpc8_probe(), mpeg4video_probe(), mpegps_probe(), mpegvideo_probe(), mtv_probe(), nsv_probe(), oma_read_probe(), probe(), pva_probe(), read_gab2_sub(), spdif_probe(), str_probe(), tak_probe(), tta_probe(), vc1t_probe(), vmd_probe(), vqf_probe(), wsaud_probe(), and xa_probe().
#define AVPROBE_SCORE_MIME 75 |
score for file mime type
Definition at line 403 of file avformat.h.
#define AVPROBE_SCORE_MAX 100 |
maximum score
Definition at line 404 of file avformat.h.
Referenced by aea_read_probe(), aiff_probe(), amr_probe(), apc_probe(), ape_probe(), asf_probe(), av_probe_input_buffer(), avi_probe(), bfi_probe(), cdata_probe(), cin_probe(), dfa_probe(), dirac_probe(), dnxhd_probe(), dv_probe(), dxa_probe(), ea_probe(), film_probe(), flic_probe(), flv_probe(), fourxm_probe(), gxf_probe(), hls_probe(), hnm_probe(), iff_probe(), ilbc_probe(), img_read_probe(), ipmovie_probe(), iss_probe(), lmlm4_probe(), lxf_probe(), matroska_probe(), mmf_probe(), mov_probe(), mpc8_probe(), mpc_probe(), mpegts_probe(), msnwc_tcp_probe(), mtv_probe(), mv_probe(), mxf_probe(), nc_probe(), nsv_probe(), nut_probe(), nuv_probe(), ogg_probe(), oma_read_probe(), pmp_probe(), probe(), probe_codec(), qcp_probe(), r3d_probe(), read_probe(), rl2_probe(), rm_probe(), roq_probe(), rpl_probe(), rtsp_probe(), sap_probe(), seq_probe(), siff_probe(), smacker_probe(), smjpeg_probe(), smush_read_probe(), sol_probe(), sox_probe(), spdif_probe(), srt_probe(), swf_probe(), thp_probe(), tmv_probe(), txd_probe(), vid_probe(), voc_probe(), vqf_probe(), wc3_probe(), wsvqa_probe(), wv_probe(), xmv_probe(), xwma_probe(), yop_probe(), and yuv4_probe().
#define AVPROBE_PADDING_SIZE 32 |
extra allocated bytes at the end of the probe buffer
Definition at line 406 of file avformat.h.
Referenced by av_probe_input_buffer(), main(), and probe_codec().
#define AVFMT_NOFILE 0x0001 |
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition at line 409 of file avformat.h.
Referenced by av_probe_input_format2(), av_write_trailer(), avconv_cleanup(), avformat_close_input(), estimate_timings(), img_read_header(), init_input(), main(), open_output_file(), probe(), seg_write_header(), and write_header().
#define AVFMT_NEEDNUMBER 0x0002 |
Needs 'd' in filename.
Definition at line 410 of file avformat.h.
Referenced by avformat_open_input(), and open_output_file().
#define AVFMT_SHOW_IDS 0x0008 |
Show format stream IDs numbers.
Definition at line 411 of file avformat.h.
Referenced by dump_stream_format(), and show_stream().
#define AVFMT_RAWPICTURE 0x0020 |
Format wants AVPicture structure for raw picture data.
Definition at line 412 of file avformat.h.
Referenced by do_video_out(), flush_encoders(), and write_video_frame().
#define AVFMT_GLOBALHEADER 0x0040 |
Format wants global header.
Definition at line 415 of file avformat.h.
Referenced by add_audio_stream(), add_video_stream(), init_muxer(), new_output_stream(), and open_output_file().
#define AVFMT_NOTIMESTAMPS 0x0080 |
Format does not need / have any timestamps.
Definition at line 416 of file avformat.h.
Referenced by av_interleaved_write_frame(), av_write_frame(), do_video_out(), transcode_init(), write_frame(), and write_packet().
#define AVFMT_GENERIC_INDEX 0x0100 |
Use generic index building code.
Definition at line 417 of file avformat.h.
Referenced by parse_packet(), and read_frame_internal().
#define AVFMT_TS_DISCONT 0x0200 |
Format allows timestamp discontinuities.
Note, muxers always require valid (monotone) timestamps
Definition at line 418 of file avformat.h.
Referenced by decode_thread(), and process_input().
#define AVFMT_VARIABLE_FPS 0x0400 |
Format allows variable fps.
Definition at line 419 of file avformat.h.
Referenced by do_video_out(), and transcode_init().
#define AVFMT_NODIMENSIONS 0x0800 |
Format does not need width/height.
Definition at line 420 of file avformat.h.
Referenced by init_muxer().
#define AVFMT_NOSTREAMS 0x1000 |
Format does not require any streams.
Definition at line 421 of file avformat.h.
Referenced by init_muxer(), and transcode_init().
#define AVFMT_NOBINSEARCH 0x2000 |
Format does not allow to fall back on binary search via read_timestamp.
Definition at line 422 of file avformat.h.
Referenced by seek_frame_internal().
#define AVFMT_NOGENSEARCH 0x4000 |
Format does not allow to fall back on generic search.
Definition at line 423 of file avformat.h.
Referenced by seek_frame_internal().
#define AVFMT_NO_BYTE_SEEK 0x8000 |
Format does not allow seeking by bytes.
Definition at line 424 of file avformat.h.
Referenced by seek_frame_internal().
#define AVFMT_ALLOW_FLUSH 0x10000 |
Format allows flushing.
If not set, the muxer will not receive a NULL packet in the write_packet function.
Definition at line 425 of file avformat.h.
Referenced by av_write_frame().
#define AVFMT_TS_NONSTRICT 0x20000 |
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition at line 426 of file avformat.h.
Referenced by compute_pkt_fields2(), and write_frame().
#define AVFMT_TS_NEGATIVE 0x40000 |
Format allows muxing negative timestamps.
If not set the timestamp will be shifted in av_write_frame and av_interleaved_write_frame so they start from 0.
Definition at line 431 of file avformat.h.
Referenced by write_packet().
#define AVINDEX_KEYFRAME 0x0001 |
Definition at line 662 of file avformat.h.
Referenced by ape_read_header(), asf_build_simple_index(), asf_read_pts(), avi_read_idx1(), avi_read_packet(), avi_sync(), clean_index(), ff_index_search_timestamp(), find_and_decode_index(), flv_read_packet(), matroska_parse_block(), matroska_parse_cues(), mov_build_index(), mov_read_packet(), mov_read_trun(), mpc8_parse_seektable(), mpc_read_packet(), mpegps_read_pes_header(), mv_read_header(), mxf_compute_ptses_fake_index(), nsv_parse_NSVs_header(), nut_write_packet(), parse_keyframes_index(), parse_packet(), pmp_header(), pva_read_header(), read_braindead_odml_indx(), read_frame_internal(), read_header(), read_index(), read_pakt_chunk(), read_part_of_packet(), read_xing_toc(), rl2_read_header(), rm_read_dts(), rm_read_index(), rm_read_packet(), tta_read_header(), wv_read_packet(), and xwma_read_header().
#define AV_DISPOSITION_DEFAULT 0x0001 |
Definition at line 668 of file avformat.h.
Referenced by dump_stream_format(), enable_tracks(), matroska_parse_tracks(), mkv_write_track(), and mov_read_tkhd().
#define AV_DISPOSITION_DUB 0x0002 |
Definition at line 669 of file avformat.h.
Referenced by dump_stream_format().
#define AV_DISPOSITION_ORIGINAL 0x0004 |
Definition at line 670 of file avformat.h.
Referenced by dump_stream_format().
#define AV_DISPOSITION_COMMENT 0x0008 |
Definition at line 671 of file avformat.h.
Referenced by avformat_find_stream_info(), and dump_stream_format().
#define AV_DISPOSITION_LYRICS 0x0010 |
Definition at line 672 of file avformat.h.
Referenced by dump_stream_format().
#define AV_DISPOSITION_KARAOKE 0x0020 |
Definition at line 673 of file avformat.h.
Referenced by avformat_find_stream_info(), and dump_stream_format().
#define AV_DISPOSITION_FORCED 0x0040 |
Track should be used during playback by default.
Useful for subtitle track that should be displayed even when user did not explicitly ask for subtitles.
Definition at line 680 of file avformat.h.
Referenced by dump_stream_format(), and matroska_parse_tracks().
#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 |
stream for hearing impaired audiences
Definition at line 681 of file avformat.h.
Referenced by av_find_best_stream(), avformat_find_stream_info(), dump_stream_format(), ff_parse_mpeg2_descriptor(), mpegts_write_pmt(), and parse_chunks().
#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 |
stream for visual impaired audiences
Definition at line 682 of file avformat.h.
Referenced by av_find_best_stream(), avformat_find_stream_info(), dump_stream_format(), ff_parse_mpeg2_descriptor(), mpegts_write_pmt(), and parse_chunks().
#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 |
stream without voice
Definition at line 683 of file avformat.h.
Referenced by avformat_find_stream_info(), dump_stream_format(), ff_parse_mpeg2_descriptor(), and mpegts_write_pmt().
#define AV_DISPOSITION_ATTACHED_PIC 0x0400 |
The stream is stored in the file as an attached picture/"cover art" (e.g.
APIC frame in ID3v2). The single packet associated with it will be returned among the first few packets read from the file unless seeking takes place. It can also be accessed at any time in AVStream.attached_pic.
Definition at line 690 of file avformat.h.
Referenced by ape_tag_read_field(), asf_read_picture(), av_find_default_stream_index(), ff_flac_parse_picture(), ff_id3v2_parse_apic(), mov_read_covr(), and queue_attached_pictures().
#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001 |
The call resulted in updated metadata.
Definition at line 819 of file avformat.h.
Referenced by decode_info_header(), and ff_vorbis_stream_comment().
#define MAX_STD_TIMEBASES (60*12+5) |
Stream information used internally by av_find_stream_info()
Definition at line 832 of file avformat.h.
Referenced by avformat_find_stream_info().
#define MAX_PROBE_PACKETS 2500 |
Number of packets to buffer for codec probing.
Definition at line 858 of file avformat.h.
Referenced by avformat_new_stream(), ff_read_frame_flush(), ff_store_parser_state(), and set_codec_from_probe_data().
#define MAX_REORDER_DELAY 16 |
Definition at line 875 of file avformat.h.
Referenced by avformat_new_stream(), compute_pkt_fields(), compute_pkt_fields2(), and ff_read_frame_flush().
#define AV_PROGRAM_RUNNING 1 |
Definition at line 884 of file avformat.h.
#define AVFMTCTX_NOHEADER 0x0001 |
signal that no header is present (streams are added dynamically)
Definition at line 901 of file avformat.h.
Referenced by avformat_find_stream_info(), avs_read_header(), cdxl_read_header(), ff_rtsp_open_transport_ctx(), flv_read_header(), hls_read_header(), img_read_header(), mpegps_read_header(), mpegts_read_header(), read_header(), roq_read_header(), sap_fetch_packet(), sap_read_header(), spdif_read_header(), str_read_header(), swf_read_header(), vid_read_header(), and wsvqa_read_header().
#define AVFMT_FLAG_GENPTS 0x0001 |
Generate missing pts even if it requires parsing future frames.
Definition at line 1034 of file avformat.h.
Referenced by av_read_frame(), and decode_thread().
#define AVFMT_FLAG_IGNIDX 0x0002 |
Ignore index.
Definition at line 1035 of file avformat.h.
Referenced by avi_read_header(), gxf_read_index(), matroska_execute_seekhead(), mov_read_default(), parse_keyframes_index(), and rm_read_header().
#define AVFMT_FLAG_NONBLOCK 0x0004 |
Do not block when reading packets from input.
Definition at line 1036 of file avformat.h.
Referenced by device_open(), fbdev_read_header(), fbdev_read_packet(), ff_alsa_open(), open_input_file(), open_output_file(), and vfw_read_packet().
#define AVFMT_FLAG_IGNDTS 0x0008 |
Ignore DTS on frames that contain both DTS & PTS.
Definition at line 1037 of file avformat.h.
Referenced by compute_pkt_fields().
#define AVFMT_FLAG_NOFILLIN 0x0010 |
Do not infer any values from other values, just return what is stored in the container.
Definition at line 1038 of file avformat.h.
Referenced by compute_pkt_fields().
#define AVFMT_FLAG_NOPARSE 0x0020 |
Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled.
Definition at line 1039 of file avformat.h.
Referenced by avformat_find_stream_info(), and read_frame_internal().
#define AVFMT_FLAG_NOBUFFER 0x0040 |
Do not buffer frames when possible.
Definition at line 1040 of file avformat.h.
Referenced by avformat_find_stream_info().
#define AVFMT_FLAG_CUSTOM_IO 0x0080 |
The caller has supplied a custom AVIOContext, don't avio_close() it.
Definition at line 1041 of file avformat.h.
Referenced by avformat_close_input(), avformat_open_input(), init_input(), and mov_write_header().
#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 |
Discard frames marked corrupted.
Definition at line 1042 of file avformat.h.
Referenced by ff_read_packet().
#define AVFMT_FLAG_FLUSH_PACKETS 0x0200 |
Flush the AVIOContext every packet.
Definition at line 1043 of file avformat.h.
Referenced by write_packet().
#define AVFMT_FLAG_BITEXACT 0x0400 |
When muxing, try to avoid writing any random/volatile data to the output.
This includes any random IDs, real-time timestamps/dates, muxer version, etc.
This flag is mainly intended for testing.
Definition at line 1050 of file avformat.h.
Referenced by flac_write_header(), init_muxer(), mkv_write_header(), mov_write_ilst_tag(), mov_write_udta_tag(), mxf_write_header(), mxf_write_identification(), ogg_write_header(), put_flac_codecpriv(), and set_encoder_id().
#define FF_FDEBUG_TS 0x0001 |
Definition at line 1169 of file avformat.h.
Referenced by read_frame_internal().
#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001 |
The call resulted in updated metadata.
Definition at line 1201 of file avformat.h.
Referenced by amf_parse_object(), decode_info_header(), flac_read_header(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_metadata_loci(), mov_metadata_track_or_disc_number(), mov_read_udta_string(), and read_frame_internal().
#define RAW_PACKET_BUFFER_SIZE 2500000 |
Remaining size available for raw_packet_buffer, in bytes.
Definition at line 1238 of file avformat.h.
Referenced by avformat_open_input(), ff_store_parser_state(), and flush_packet_queue().
#define AVSEEK_FLAG_BACKWARD 1 |
seek backward
Definition at line 1609 of file avformat.h.
Referenced by avformat_seek_file(), avi_read_packet(), avi_read_seek(), ff_gen_search(), ff_index_search_timestamp(), ff_pcm_read_seek(), ff_seek_frame_binary(), gxf_seek(), hls_read_seek(), matroska_read_seek(), movie_init(), nut_write_packet(), open_input_file(), read_seek(), rl2_read_seek(), rtmp_read_seek(), and vqf_read_seek().
#define AVSEEK_FLAG_BYTE 2 |
seeking based on position in bytes
Definition at line 1610 of file avformat.h.
Referenced by ff_gen_syncpoint_search(), hls_read_seek(), mv_read_seek(), read_seek(), read_seek2(), rtmp_read_seek(), search_hi_lo_keyframes(), seek_frame_internal(), and stream_seek().
#define AVSEEK_FLAG_ANY 4 |
seek to any frame, even non-keyframes
Definition at line 1611 of file avformat.h.
Referenced by avi_read_packet(), ff_add_index_entry(), ff_index_search_timestamp(), gxf_seek(), hls_read_packet(), matroska_read_seek(), ogg_read_seek(), read_packet(), and search_hi_lo_keyframes().
#define AVSEEK_FLAG_FRAME 8 |
seeking based on frame number
Definition at line 1612 of file avformat.h.
Referenced by mv_read_seek(), read_seek(), and read_seek2().
enum AVStreamParseType |
Definition at line 651 of file avformat.h.
int av_get_packet | ( | AVIOContext * | s, |
AVPacket * | pkt, | ||
int | size | ||
) |
Allocate and read the payload of a packet and initialize its fields with default values.
s | associated IO context |
pkt | packet |
size | desired payload size |
Definition at line 117 of file utils.c.
Referenced by adx_read_packet(), aea_read_packet(), aiff_read_packet(), apc_read_packet(), ape_tag_read_field(), asf_read_picture(), av_append_packet(), avi_read_packet(), bfi_read_packet(), cdata_read_packet(), cdxl_read_packet(), cin_read_packet(), daud_packet(), dfa_read_packet(), dxa_read_packet(), ea_read_packet(), ff_rm_parse_packet(), ff_rm_retrieve_cache(), ff_voc_get_packet(), film_read_packet(), flv_data_packet(), flv_read_packet(), fourxm_read_packet(), gsm_read_packet(), gxf_packet(), hnm_read_packet(), idcin_read_packet(), iff_read_packet(), iss_read_packet(), lmlm4_read_packet(), load_ipmovie_packet(), mov_read_covr(), mov_read_packet(), mp3_read_packet(), mpc8_read_packet(), mpegps_read_packet(), msnwc_tcp_read_packet(), mtv_read_packet(), mv_read_packet(), mxf_decrypt_triplet(), mxf_get_d10_aes3_packet(), mxf_read_packet(), mxf_read_packet_old(), nc_read_packet(), nsv_read_chunk(), nuv_packet(), oma_read_packet(), pcm_read_packet(), pmp_packet(), pva_read_packet(), qcp_read_packet(), r3d_read_reda(), r3d_read_redv(), raw_read_packet(), rawvideo_read_packet(), read_packet(), rl2_read_packet(), roq_read_packet(), rpl_read_packet(), rso_read_packet(), seq_read_packet(), siff_read_packet(), smjpeg_read_packet(), smush_read_packet(), sol_read_packet(), sox_read_packet(), swf_read_packet(), thp_read_packet(), tmv_read_packet(), tta_read_packet(), txd_read_packet(), vc1t_read_packet(), vid_read_packet(), wc3_read_packet(), wsaud_read_packet(), xa_read_packet(), xmv_fetch_audio_packet(), xwma_read_packet(), yop_read_packet(), and yuv4_read_packet().
int av_append_packet | ( | AVIOContext * | s, |
AVPacket * | pkt, | ||
int | size | ||
) |
Read data and append it to the current content of the AVPacket.
If pkt->size is 0 this is identical to av_get_packet. Note that this uses av_grow_packet and thus involves a realloc which is inefficient. Thus this function should only be used when there is no reasonable way to know (an upper bound of) the final size.
s | associated IO context |
pkt | packet |
size | amount of data to read |
Definition at line 127 of file utils.c.
Referenced by dfa_read_packet(), read_packet(), wc3_read_header(), and wc3_read_packet().